Rowe Carroll
07/24/2023 · Junior High School
10. Расставьте коэффициенты в схемах реакций. Выберите реакции обмена. a) \( \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2} \uparrow \) б) \( \mathrm{Na}^{2}+\mathrm{S} \rightarrow \mathrm{Na}_{2} \mathrm{~S} \) в) \( \mathrm{N}_{2}+\mathrm{H}_{2} \rightarrow \mathrm{NH}_{3} \uparrow \) r) \( \mathrm{CO}_{2}+\mathrm{Mg} \rightarrow \mathrm{MgO}+\mathrm{C} \downarrow \) д) \( \mathrm{Al}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}+\mathrm{H}_{2} \uparrow \) e) \( \mathrm{MgO}+\mathrm{HNO}_{3} \rightarrow \mathrm{Mg}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{H}_{2} \mathrm{O} \)
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Рассмотрим реакции и расставим коэффициенты. Реакцией обмена является (е).
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